Automatic loading attachment for hay wagons



Aug. 14, 1951 w. H. RODEFELD 2,564,234

AUTOMATIC LOADING ATTACHMENT FOR HAY WAGONS Filed Jan. 30, 1948 2Sheets-Sheet 1 wwmww Inventor:

1951 w. H. RODEFELD I 3 L AUTOMATIC LOADING ATTACHMENT FOR HAY WAGONSFiled Jan. 30, 1948 2 Sheets-Sheet 2 Inventor,

i atenteci Aug. 14,

UNITED" STATES PATBNT OFFICE The object of this 11 1 H simpler, loweroost a d mop ,efflgie' n" v atfc machine for hatjvestiii'g hay and totake lip straw 5 attam ms ot eet-wi itnei ie "i the aeg'ompahyiiig' twosheets of drawlrigs, Whi 3h Fi ure is? i evi w oil i i ef w .1 g a;oonv'e'yanoe'ff fcf r'ibin'atio'n with 'rakihg' and ,r 2:: v .1 I IFigure 2' is a top. flew: 1'th' a'sectio floor of alofad' co part a drlo'ad; away to show raki below the 11 r. Figure 3 isa'se na :siaevgewmgtdeo 1" ci-ga qr ig; 2 blitwith'parts Of the ends and sides 'eu'ta'waya, e Y t igure 4 'is t' e n from h pp teeth omitted 516 .811 x s A,position and means'jby whiehthQ, Figure 5 is arpsrtia ecuonmsme the aixlelgjvthe. leftwheel and'means raise vw e I Figui'e6 i's'a partial sideviewshowlng heel, part of the frame and part of the loacfiii'g mehalmsm. .7 e.

v ef r lq'i hich 111 ports the pusher armshaft between each two :pusherarms. t

Figure 11' a sectional view showin ip'rtipi the machine including partof the IOading mhanlsm" I .a; e. rye.

A rigiie 6 extehds forward and a jackserew l 's'uppm'fts the tongue whenit is not hitched to a traeto'r. A cou'plin g 'pin 8 is for connectingto the'eqi'awba f of a tractor.

Fcj'r aid. 1 the ale arid parallel therewith is s v1rs11 e tooth shaft"9 and secured thereto are rake teeth m. V k Referring now to Fig. ,5 acam l I that enrea'to,a ;1e' 3Astrikes a lever I2 causing 1 to s 118"on; its support l3. A l i hk l 4 conn c t's 1 ev'ei",l 2 and an ,a'r'm't5 thatisoh the rake tooth shaft 9. It can now be seeid that as; theaxle rotatesthecam H z aises the lever lland through the fink" isha thearm :55; the shaft ,ehis' ttilfned to raise the take teeth J0 flheraised position g fthe rake. teeth I0 is shown by brokeri lines in 1g31: t I ,As, the machine travelsfolrwai'd the rake teeth fake tip" ablihCh of material and then rise and d t e t r a v k i a th mb ai -Q theafter passing the witch dropped the r'alge teeth retur'ri 'to the groundto rake up another bunch of mltefiah Ct'os'swise'of the machine below 1ehas e1; 1y:i. .of.th'frah1l e .is" a shaft, [6 and fastened thereto ans.eiidih' fiorwarditherefron i are tirges H. {I} 'fo 1 t*q.ai1'd exidsoftines l1 sligleo the gro hd pass uhdei' the buhched material dropp'efithf. raking" teethL v Ari upward, c nrvi g proj' tip 118 011 thetihesi'control'sflthe position pf rfiateiia'l on' the tines. After thetines .talgen, upa buneh ofv material they then lls to th'position shdwjn Figs, 4 and 11 'I he tihes t1 are'raised his? mechanism, shown in111g. 4 copo'f la t9 that islfas'terie d toaixlle Sahel a" hell c rahk'2'8 that is pivoted o'ri' a p'in 2| aiid. that cafi'iesa rollel 22that-rides calh I 9 and a eonneetingrod 23 that connects me bell cianliandan a rm z that is on the shaft'jfi An "'e'n'i1ig" 25 extends across,the floor of the 9 1. ace.- B ow. e a ed e of] openi g ,2?

a' tpj'ilsher,armlshaftiifi and extendir ijg therefi'toin'afe the pus erarms}? a d oh one ehd or thie shaftisj an o jeratir'ig aim 28. r I orSupfiOItihg" the right; end of p s er shlaf t gfi isfa hearin casting 29(Figs. he and 7). h' n ixfrb peerin casting 29 iorwa dlq' 3 5 h gh, fiii l flft 25 s) a h vylp w-r 3 Mbimi to 'stv'ing ori'pih 3G is an arm31, E 'xt' dihg ire h the in er side of hars 3 5 the'lowerefid the'heofis'afpin' 32. Cohhe'ctihghimfZB ohthejpusheg' shaft and pin 32 is a link33. Extending" from' t eouteh o arm? a 23 t. A nee '35 ke eii t Qthe, r'ehtel d Of @8183 oijt 'the wheel and aeflang'n isfkeyed' to the left'end' of aide 3 outside the wheel:

On flange 35 is a crank-pin 31. Connecting crank-pin 3'! and the pin 34on arm 3| is a connecting rod 38.

It can now be seen that crank-pin 31 and the operating arm 28 on thepusher arm shaft are connected by the connecting rod 38, the arm 3i andthe link 33.

The reason for the use of arm 31 between the crank-pin 31 and the pushershaft operating arm 28 is to get a full half turn in the movement ofpusher arm shaft 26. It is impossible to turn a shaft a full half turnby a connecting rod moved by a crank but by using the arm and link.arrangement shown I obtain this result without resorting to gears orother more complicated means. It is difficult to explain this actionhowever a study of Figs. 1, 2, 6 and '7 should make the action clear. InFig. 6 the crank-pin 31 is in rearward position and the arm 3l is backwith the end of it being in line with and in front of shaft 28 and thearm 28 on shaft 28 is extending upward in position opposite that shownin Fig. l. The arm 28 does not show in Fig. 6 as it is behind arm 3i andlink 33 however the end of pin 39 that extends from arm 28 (see Fig. 8)does show in Fig. 6 and is indicated by numeral 39 in Fig. 6.

Fig. 7 shows the rightend of pusher shaft 28 and a section of frame sidemember 4 and the link 33 and the arm 3| as these parts appear from therear when in the position shown in Fig. 1.

As the axle of the machine rotates the crankpin 31 and the connectingrod 38 swing the arm 3| forward and backward. When arm 8| is in forwardposition the pin 32 at the end thereof is forward of the pin 39 on arm28 of shaft 28 and connected thereto by the link 33 with link 33substantially horizontal. As the arm 3i rnoves rearward the arm 28swings upward to a vertical position above the shaft 28 with the link 33going to the position shown in Fig. 6.

It can now be seen that when the axle rotates the pusher arm shaft willoscillate making two half turns for each turn of the axle. The pusherarms 21 on the shaft 26 will therefore swing from rearward position toforward position and back to rearward position. In Fig.

-l1 the pusher arm 21 is shown in forward position by solid lines and inrearward position by broken lines.

. In Fig. 11 the path of the ends of the pusher :arms is shown by abroken line. It will be noticed that the curve of the upward projection[8 on tine H is concentric with the are made by the pusher 21' as itswings from one position to the other while the tine ii is in raisedposition.

Guiding and holding members 48 (Figs. 2, 3, and 11) extend downward fromthe front side of the opening in the floor and are located in line withthe tines [1. It will be noticed in Fig. 11 that the ends of the pusherarms 2'! pass between the tines l1 and pass between the projectingpoints 4| on the guiding and holdin members 40. The purpose of theseguiding and holding members 40 is to guide material up through theopening in the floor and to keep it from falling back.

It has now been shown that the rake teeth rake and bunch material andthe tines take up the bunched material and raise it and the pusher armsswing forward and backward. The several movements are timed so that whenthe tines rise with a bunch of material the pusher arms 21 will be inrearward position (broken lines in Fig. 11). The pusher arms 2'! thenswing downward and forward and then upward and push the material fromthe tines up over the guides 40 through the opening in the floor.

When the material has been pushed from the tines H the said tines thenreturn to the ground to take up the next bunch of material.

Supporting the pusher arms shaft 26 between each two arms is a halfbearing 42. The bearings 42 and the points 4| on the holding and guidingmembers project into the passage for material substantially at oppositepositions. After the pusher arms 21 have reached the limit of theirforward and upward movement they then swing back and the material isheld by the points 4| and the inner ends of bearings :32. Each bunch ofmaterial pushes material ahead of it up into the load space.

Figures 12, 13 and 14 show means for turning the axle by the wheels orreleasing the wheels to turn on the axle thus putting the mechanism inand out of operation. On the inner side of each flange, 35 and 36, 1s ahub extension 43 (Figs. 12 and 13) one side of which extends outward andcarries a pawl 44 that engages notches 45 in the inner periphery of acylindrical extension, 46, outward from the web of each wheel.

It can be seen in Fig. 12 that when the wheel turns clockwise and thepawl 44 is in position shown thatthe axle will be turned by the wheel. Aspring 41 holds the pawl 44 outward. A small shaft 48 passes througheach flange just over the pawl 44 and on the inner end of each smallshaft 48 is a cam 49. When the shaft is turned the cam 49 presses thepawl inward out of contact with the notches 45 and thus frees the wheelon the axle. On the outer end of each shaft 48 is a trigger 50 by whichthe shaft is turned. It can now be seen that the mechanism is put out ofoperation when the trigger 58 is turned .to the position shown by brokenlines in Fig.

14 and is put in operation when the trigger 50 is turned to the positionshown by solid lines in Fig. 14.

Having now shown my invention, I claim:

1. In a machine to take up hay and similar material, raking teeth, meansto raise and lower the said raking teeth, forward extending tines, meansto raise and lower the said tines, arms extending from a shaft, means toturn the said shaft forward and backward to swing the said arms, upwardcurving projections on the said tines substantially concentric with thesaid shaft when the said tines are in raised position, a compartmentwith an opening adjacent to the said shaft, guiding means adjacent tothe said opening and holding means adjacent to the said opening.

2. In a machine to take up hay and similar material, raking teeth, meansto raise and lower the said raking teeth, pusher arms extending from ashaft, means to rotate the said shaft forward and backward to swing thesaid pusher arms, forward extending tines with upward curving topsurfaces, means to raise the said tines to a position wherein the curvedsurfaces thereof are substantially concentric with the said shaft,guiding members located to be near the ends of the said tines when thesaid tines are in raised position with the position of the said tinesand the said guiding members and the said shaft being such that the saidpushers move between the said tines when the said tines are in iai sedposition and move between the said guid- Number ing members afterpassing the ends of the said 51,650 tines. 54,392 WILLIAM H. RODEFELD.1,782,067 5 2,050,806 REFERENCES CITED 2,106,402 The followingreferences are of record in the 3 3 file of this patent: 2,405,756UNITED STATES PATENTS 10 2503522 Number Name Date 13,234 Soule July 10,1855 Name Date Craven Dec. 19, 1865 Nevergold et a1. May 1, 1866 HassmanNov. 18, 1930 Rey Aug. 11, 1936 Carlesimo Jan. 25, 1938 Rodefeld Apr. 9,1946 Rodefeld Aug. 13, 1946 Struthers et a1. Apr. 11, 1950

